Answer:
1. Acceleration
Explanation:
Newtons Second law gives the measure of acceleration
Period = (1) / (frequency)
Period = (1) / (200 per second) = 0.005 second = 5 milliseconds
Answer:

Explanation:
As we know that the position of maximum intensity on the screen is given as

here we know that
= wavelength
L = distance of the screen
d = distance between two slits
now we know that the position of 8th maximum intensity is same as that of 9th maximum on the screen
so we have

so here we have


Answer:
3, 4, 2
Explanation:
I can't see the final ones.